Trains will replace metro services between Chatswood, Epping, the CBD and Sydenham. Track work is also planned on the T4 Eastern Suburbs Line with buses replacing trains between Central and Bondi Junction.
The Bureau of Meteorology’s Tristan Sumarna said the heat was being driven by a high-pressure system entering the Tasman Sea.
Sydney’s temperature is set to hit 39 degrees on Saturday. Credit: Steven Siewert
“It’s becoming a little bit slow-moving, so it’s bringing a persistent north-westerly wind,” Sumarna said.
“That is bringing that hot, dry, continental air mass from central Australia to our part of the world, which is driving up those temperatures and lowering the relative humidity as well.”
Sydneysiders are expected to flock to the water again on Saturday including at Penrith Beach which opened a day ahead of schedule.
The swim spot nicknamed Pondi has had its hours extended, with new onsite amenities including more shade and outdoor showers in preparation for its third summer operating.
Rozema sisters Ava, 9, and Eli, 7, from Penrith, take advantage of Penrith Beach opening early. Credit: Sitthixay Ditthavong
The City of Sydney has also made all aquatic centres free to enter on Saturday as part of a summer open day.
A sharp cool change is expected to push the mercury down to 26 degrees on Sunday.
